Finish editing in 5,6,7 and bibliography

thesis.bib

-@misc{website:popularpython,
+@misc{popularpython,
     author = "Philip Guo",
     title = "Python Is Now the Most Popular Introductory Teaching Language at Top U.s. Universities",
     month = "July",
@@ -6,7 +6,7 @@
     note = "https://cacm.acm.org/blogs/blog-cacm/176450-python-is-now-the-most-popular-introductory-teaching-language-at-top-u-s-universities/fulltext"
 }
 
-@misc{website:pythongrowth,
+@misc{pythongrowth,
     author = "David Robinson",
     title = "The Incredible Growth of Python",
     month = "September",
@@ -14,7 +14,7 @@
     note = "https://stackoverflow.blog/2017/09/06/incredible-growth-python/"
 }
 
-@misc{website:whypython,
+@misc{whypython,
     author = "David Robinson",
     title = "Why is Python Growing So Quickly?",
     month = "September",
@@ -92,7 +92,6 @@
   year={2015},
 }
 
-
 @MastersThesis{Rozhkov,
   author={Рожков М.},
   title={Система автоматического тестирования программ и организации соревнований по программированию},
@@ -100,3 +99,40 @@
   address={Russia},
   year={2004},
 }
+
+@misc{deprecation,
+    author={Adam Harvey},
+    title={Request for Comments: ext/mysql deprecation},
+    month={December},
+    year={2012},
+    howpublished={https://wiki.php.net/rfc/mysql\_deprecation},
+    note={Accessed: 2018-03-17},
+}
+
+@misc{mysqlapis,
+    author = "PHP Contributors",
+    title = "Choosing an API",
+    note = "https://secure.php.net/manual/en/mysqlinfo.api.choosing.php"
+}
+
+@misc{pdo,
+    author = "PHP Contributors",
+    title = "PHP Data Objects",
+    note = "https://secure.php.net/manual/en/book.pdo.php"
+}
+@misc{dsn,
+    author = "Wikipedia contributors",
+    title = "Data source name --- Wikipedia{,} The Free Encyclopedia",
+    year = "2017",
+    url = "https://en.wikipedia.org/w/index.php?title=Data_source_name&oldid=796073781",
+    note = "[Online; accessed 17-March-2018]"
+  }
+
+@misc{pep8,
+    author={Guido van Rossum <guido at python.org>, Barry Warsaw <barry at python.org>, Nick Coghlan <ncoghlan at gmail.com>},
+    title={PEP 8 -- Style Guide for Python Code},
+    month={July},
+    year={2001},
+    howpublished={https://www.python.org/dev/peps/pep-0008/},
+    note={Accessed: 2018-03-17},
+}